The California Highway Patrol has announced that it arrested more than 150 protesters in Monday’s standoff that blocked traffic in both directions on Interstate Highway 80 in Berkeley for about 90 minutes.

Hundreds of protesters blocked Interstate 80 in Berkeley Monday night in the latest demonstration over the deaths of Eric Garner and Michael Brown during confrontations with police. Monday’s protest was the third in as many nights.

Michael Brown’s parents are expressing their frustration after Officer Darren Wilson spoke out about having a “clear conscience” following a grand jury decision not to charge Wilson for the Aug. 9 shooting of their son.